Once you've tested and submitted your podcast feed you can go to where its listed and click on the "Embed This Podcast link" this will give you the embed code for that particular podcast.
This comes in handy if you what embed a scrolling list of all the episodes in your podcast, or you might want to link to or review someone else's podcast that may be related to a particular post in your blog. Remember to be in the HTML edit mode of your blog before you paste the embed code in. Take a look at the example below.